propellers

noun
  1. 1

    One who, or that which, propels.

  2. 2

    A mechanical device with evenly-shaped blades that turn on a shaft to push against air or water, especially one used to propel an aircraft or boat.

  3. 3

    A steamboat thus propelled; a screw steamer.

  4. 4

    A spinnerbait.

Source: https://en.wiktionary.org/wiki/propeller, https://en.wiktionary.org/wiki/propellers